NAD T744 Stereo Receiver User Manual


 
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TROUBLESHOOTING
CONDITIONCONDITION
CONDITIONCONDITION
CONDITION
NO SOUND FROM ALL CHANNELS
NO SOUND FROM SOME CHANNELS
NO SOUND FROM SURROUND
CHANNELS
NO SOUND FROM SUBWOOFER
NO SOUND FROM CENTER CHANNEL
NO DOLBY DIGITAL/DTS
T 744 DOES NOT RESPOND
TO HTR 2 REMOTE
T 744 DOES NOT RESPOND
TO FRONT-PANEL COMMANDS
OR REMOTE CONTROL
POSSIBLE CAUSE(S)POSSIBLE CAUSE(S)
POSSIBLE CAUSE(S)POSSIBLE CAUSE(S)
POSSIBLE CAUSE(S)
AC power unplugged
Power not switched on
Outlet is unpowered
Faulty/missing cables
<Speaker Settings> channel (s) set to "None"
Power-amp or speaker-connections faulty
No surround listening mode is engaged
Surround-channels set to "None" on
<Speaker Settings> menu
Surround-channels level set too low on
<Channel Levels> menu
Subwoofer is off, unpowered,
or improperly connected
Subwoofer set to "OFF" on
<Speaker Settings> menu
Sub level set too low on
<Channel Levels> menu
Source is a 2/0 (etc.) Dolby Digital or
DTS recording without center channel;
Center set to "OFF" on
<Speaker Settings> menu
Center level set too low on
<Channel Levels> menu
Source's digital output is not connected to
a T 744 digital input
Batteries are flat or incorrectly inserted
IR transmitter window on remote, or
IR receiver window on T 744 is obstructed
T 744 front panel is in very bright sunlight
or ambient light
Microprocessor error
T 744 may have over heated
12V TRIGGER IN/OUT is set to AUTO or
in position
POSSIBLE SOLUTIONS(S)POSSIBLE SOLUTIONS(S)
POSSIBLE SOLUTIONS(S)POSSIBLE SOLUTIONS(S)
POSSIBLE SOLUTIONS(S)
Check AC cable, connection, and outlet
Check cables
Check <Speaker Settings> menu
Check power amp, cabling, and speakers
Select appropriate listening mode
Correct <Speakers Settings> or
<Channel Levels> settings
Power-up subwoofer, check sub's
AC outlet, or check connections
Correct <Speakers Settings> or
<Levels setup> settings
Play a known 5.1-channel recording or
select Dolby Pro Logic or Mono mode
Correct <Speakers Settings> or
<Channel Levels> settings
Check connections
Check source component setup
Check batteries
Check IR windows and ensure clear
line-of-sight from remote to T 744
Reduce sunlight/room lighting
Power-down the T 744 via the front-panel
Power button
and unplug it from the AC
outlet
Wait five minutes, re-connect and
power up
Switch to OFF position